top button
Flag Notify
    Connect to us
      Facebook Login
      Site Registration Why to Join

Facebook Login
Site Registration
Print Preview

What is “dirty read” in JDBC? Which isolation level prevents dirty read?

0 votes
22 views
posted Sep 18 by anonymous

Share this question
Facebook Share Button Twitter Share Button Google+ Share Button LinkedIn Share Button Multiple Social Share Button

1 Answer

0 votes

When we work with transactions, there is a chance that a row is updated and at the same time other query can read the updated value. This results in a dirty read because the updated value is not permanent yet, the transaction that has updated the row can rollback to previous value resulting in invalid data.

Dirty Read is prevented by isolation levels TRANSACTION_READ_COMMITTED, TRANSACTION_REPEATABLE_READ and TRANSACTION_SERIALIZABLE.

answer Sep 19 by Pankaj Singh

Useful Links with Similar Problem
Contact Us
+91 9880187415
sales@queryhome.net
support@queryhome.net
#280, 3rd floor, 5th Main
6th Sector, HSR Layout
Bangalore-560102
Karnataka INDIA.
QUERY HOME
...